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AL Circle Private Limited | CIN: U72200WB2017PTC221175

Registered Office: Ecospace Business Park, Block 3A, Unit 401A, New Town, Rajarhat, Kolkata, WB 700160

Corporate Office: Ecospace Business Park, Block 3A, Unit 401A, New Town, Rajarhat, Kolkata, WB 700160

© 2026 AL Circle. All rights reserved. AL Circle is not responsible for content from external sources.

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AL Circle: Aluminium Ecosystem App
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AL Circle Private Limited | CIN: U72200WB2017PTC221175

Registered Office: Ecospace Business Park, Block 3A, Unit 401A, New Town, Rajarhat, Kolkata, WB 700160

Corporate Office: Ecospace Business Park, Block 3A, Unit 401A, New Town, Rajarhat, Kolkata, WB 700160

© 2026 AL Circle. All rights reserved. AL Circle is not responsible for content from external sources.

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Zhonghao Aluminium Group

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Shandong Zhonghao Aluminum Group Co.Ltd - Manufacturer of aluminium alloy profiles

Shandong Zhonghao Aluminum Group Co., Ltd. is affiliated to Shandong Zhonghao Aluminum Group. It is a large-scale production enterprise specializing in aluminum alloy profiles for construction, decoration and industry. The company is located in Linqu County, Shandong Province, "the first county of aluminum in China (Jiangbei)". It covers an area of ​​300 acres and has 600 employees. It has 24 domestic most advanced aluminum production lines, and has inspection laboratories, spectrometers, and tensile prototypes. , mold design, manufacturing, extrusion, oxidation, coloring, electrophoresis, vertical spraying, wood grain, broken bridge insulation, fluorocarbon and other production capacity, the annual production capacity of 50,000 tons.

The company has advanced testing methods and perfect quality assurance system, has passed IS09001 quality management system certification, IS014000: 2004 environmental management system certification, OHSAS18000 occupational health and safety management system certification, China energy-saving product certification, and obtained China Famous Trademark, Shandong Famous Trademark, Shandong Famous Brand, Provincial Contract-honoring and Promise-keeping Enterprise, China Top 30 Aluminum Profile Enterprises and other honorary titles.


The company organizes production in strict accordance with the national standard GB5237-2008. The main products are 70, 76, 828, 858, 90 series of push-pull, casement window profiles; 50, 53, 55, 58, 63, 68, series of broken bridge heat insulation profiles; Various series of pop-up doors, swing doors, art door profiles and high-quality glass curtain wall profiles. Since its establishment, the company has been widely recognized by customers inside and outside the province for its high-standard quality, complete specifications, reasonable price positioning, and excellent after-sales service. The products have been used in CCTV CCTV Building, Beijing Olympic Village, Capital International Airport, Shandong Olympic Sports Center, 2012 7th National Agricultural Games venues and other national large-scale key projects, some products are sold to Japan, South Korea, Angola, Dubai, Europe and the United States and other countries.


Guided by customer needs, continuously improving and perfecting quality management, and continuously providing customers with high-quality, satisfactory products and timely and thoughtful services are the eternal pursuit of Zhonghao people. Promoting Zhonghao with science and technology and creating a famous brand with quality are the development policy of Zhonghao. Zhonghao people will better dedicate to new and old customers with high entrepreneurial passion, complete modern enterprise management system, and first-class products and services.

Products and Services

Building and Construction Extrusion
Silver Anodizing Aluminium Formwork Profile

Silver Anodizing Aluminium Formwork Profile

Building and Construction Extrusion
Sandblasting Matt Anodised Black Aluminium Profile

Sandblasting Matt Anodised Black Aluminium Profile

Building and Construction Extrusion
Extrusion Industrial Profile Alloy Frame

Extrusion Industrial Profile Alloy Frame

Building and Construction Extrusion
Aluminium Profile for Windows and Doors

Aluminium Profile for Windows and Doors

Extrusion 6063 Scrap
Aluminium Extrusion Scrap 6063 10mm Slot

Aluminium Extrusion Scrap 6063 10mm Slot

Building and Construction Extrusion
Aluminum Profile T3-T5

Aluminum Profile T3-T5

Building and Construction Extrusion
Sliding Door Bottom Track Aluminium Profile

Sliding Door Bottom Track Aluminium Profile

Building and Construction Extrusion
6063 Aluminium Extrusion Profile for Windows and Doors

6063 Aluminium Extrusion Profile for Windows and Doors

Doors and Windows Accessories
Aluminium Profile Handles

Aluminium Profile Handles

Building and Construction Extrusion
6063 6061 T5 T6 Wardrobe Slim Sliding Door Aluminium Profile

6063 6061 T5 T6 Wardrobe Slim Sliding Door Aluminium Profile

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